forked from chromium/chromium
-
Notifications
You must be signed in to change notification settings - Fork 0
/
chrome_features.cc
1533 lines (1355 loc) · 64.7 KB
/
chrome_features.cc
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
// Copyright 2016 The Chromium Authors
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "chrome/common/chrome_features.h"
#include "base/command_line.h"
#include "base/feature_list.h"
#include "base/strings/string_split.h"
#include "build/build_config.h"
#include "build/chromeos_buildflags.h"
#include "chrome/common/chrome_switches.h"
#include "ppapi/buildflags/buildflags.h"
namespace features {
// All features in alphabetical order.
#if BUILDFLAG(IS_CHROMEOS_ASH)
// If enabled device status collector will add the type of session (Affiliated
// User, Kiosks, Managed Guest Sessions) to the device status report.
BASE_FEATURE(kActivityReportingSessionType,
"ActivityReportingSessionType",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
#if BUILDFLAG(IS_CHROMEOS_ASH)
// Enables or disables logging for adaptive screen brightness on Chrome OS.
BASE_FEATURE(kAdaptiveScreenBrightnessLogging,
"AdaptiveScreenBrightnessLogging",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif
#if BUILDFLAG(IS_CHROMEOS_ASH)
BASE_FEATURE(kAppManagementAppDetails,
"AppManagementAppDetails",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
#if BUILDFLAG(IS_CHROMEOS_ASH)
BASE_FEATURE(kAppDeduplicationService,
"AppDeduplicationService",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
#if BUILDFLAG(IS_CHROMEOS_ASH)
BASE_FEATURE(kAppDeduplicationServiceFondue,
"AppDeduplicationServiceFondue",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
#if BUILDFLAG(IS_CHROMEOS_ASH)
BASE_FEATURE(kAppPreloadService,
"AppPreloadService",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
#if BUILDFLAG(IS_MAC)
// Can be used to disable RemoteCocoa (hosting NSWindows for apps in the app
// process). For debugging purposes only.
BASE_FEATURE(kAppShimRemoteCocoa,
"AppShimRemoteCocoa",
base::FEATURE_ENABLED_BY_DEFAULT);
// This is used to control the new app close behavior on macOS wherein closing
// all windows for an app leaves the app running.
// https://crbug.com/1080729
BASE_FEATURE(kAppShimNewCloseBehavior,
"AppShimNewCloseBehavior",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif // BUILDFLAG(IS_MAC)
// Enables the built-in DNS resolver.
BASE_FEATURE(kAsyncDns,
"AsyncDns",
#if BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_ANDROID) || \
BUILDFLAG(IS_WIN)
base::FEATURE_ENABLED_BY_DEFAULT
#else
base::FEATURE_DISABLED_BY_DEFAULT
#endif
);
#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX) || \
BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_FUCHSIA)
// Enables or disables the Autofill survey triggered by opening a prompt to
// save address info.
BASE_FEATURE(kAutofillAddressSurvey,
"AutofillAddressSurvey",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Autofill survey triggered by opening a prompt to
// save credit card info.
BASE_FEATURE(kAutofillCardSurvey,
"AutofillCardSurvey",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Autofill survey triggered by opening a prompt to
// save password info.
BASE_FEATURE(kAutofillPasswordSurvey,
"AutofillPasswordSurvey",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif
#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
// Enables the Restart background mode optimization. When all Chrome UI is
// closed and it goes in the background, allows to restart the browser to
// discard memory.
BASE_FEATURE(kBackgroundModeAllowRestart,
"BackgroundModeAllowRestart",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif // BUILDFLAG(IS_WIN) || BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_CHROMEOS)
#if BUILDFLAG(IS_CHROMEOS_ASH)
// Enable Borealis on Chrome OS.
BASE_FEATURE(kBorealis, "Borealis", base::FEATURE_DISABLED_BY_DEFAULT);
#endif
// Enables change picture video mode.
BASE_FEATURE(kChangePictureVideoMode,
"ChangePictureVideoMode",
base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kClientStorageAccessContextAuditing,
"ClientStorageAccessContextAuditing",
base::FEATURE_DISABLED_BY_DEFAULT);
#if BUILDFLAG(IS_CHROMEOS_ASH)
// Enables or disables "usm" service in the list of user services returned by
// userInfo Gaia message.
BASE_FEATURE(kCrOSEnableUSMUserService,
"CrOSEnableUSMUserService",
base::FEATURE_ENABLED_BY_DEFAULT);
// Enables or disables flash component updates on Chrome OS.
BASE_FEATURE(kCrosCompUpdates,
"CrosCompUpdates",
base::FEATURE_ENABLED_BY_DEFAULT);
// Enable project Crostini, Linux VMs on Chrome OS.
BASE_FEATURE(kCrostini, "Crostini", base::FEATURE_DISABLED_BY_DEFAULT);
// Enable additional Crostini session status reporting for
// managed devices only, i.e. reports of installed apps and kernel version.
BASE_FEATURE(kCrostiniAdditionalEnterpriseReporting,
"CrostiniAdditionalEnterpriseReporting",
base::FEATURE_ENABLED_BY_DEFAULT);
// Enable advanced access controls for Crostini-related features
// (e.g. restricting VM CLI tools access, restricting Crostini root access).
BASE_FEATURE(kCrostiniAdvancedAccessControls,
"CrostiniAdvancedAccessControls",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables infrastructure for applying Ansible playbook to default Crostini
// container.
BASE_FEATURE(kCrostiniAnsibleInfrastructure,
"CrostiniAnsibleInfrastructure",
base::FEATURE_ENABLED_BY_DEFAULT);
// Enables infrastructure for generating Ansible playbooks for the default
// Crostini container from software configurations in JSON schema.
BASE_FEATURE(kCrostiniAnsibleSoftwareManagement,
"CrostiniAnsibleSoftwareManagement",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables support for sideloading android apps into Arc via crostini.
BASE_FEATURE(kCrostiniArcSideload,
"CrostiniArcSideload",
base::FEATURE_ENABLED_BY_DEFAULT);
// Enables distributed model for TPM1.2, i.e., using tpm_managerd and
// attestationd.
BASE_FEATURE(kCryptohomeDistributedModel,
"CryptohomeDistributedModel",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables cryptohome UserDataAuth interface, a new dbus interface that is
// fully protobuf and uses libbrillo for dbus instead of the deprecated
// glib-dbus.
BASE_FEATURE(kCryptohomeUserDataAuth,
"CryptohomeUserDataAuth",
base::FEATURE_DISABLED_BY_DEFAULT);
// Kill switch for cryptohome UserDataAuth interface. UserDataAuth is a new
// dbus interface that is fully protobuf and uses libbrillo for dbus instead
// instead of the deprecated glib-dbus.
BASE_FEATURE(kCryptohomeUserDataAuthKillswitch,
"CryptohomeUserDataAuthKillswitch",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif
#if BUILDFLAG(IS_CHROMEOS)
// Enables parsing and enforcing Data Leak Prevention policy rules that
// restricts usage of some system features, e.g.clipboard, screenshot, etc.
// for confidential content.
BASE_FEATURE(kDataLeakPreventionPolicy,
"DataLeakPreventionPolicy",
base::FEATURE_ENABLED_BY_DEFAULT);
// Enables starting of Data Leak Prevention Files Daemon by sending the
// DLP policy there. The daemon might restrict access to some protected files.
BASE_FEATURE(kDataLeakPreventionFilesRestriction,
"DataLeakPreventionFilesRestriction",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif
#if BUILDFLAG(IS_CHROMEOS_ASH)
// Enables passing additional user authentication in requests to DMServer
// (policy fetch, status report upload).
BASE_FEATURE(kDMServerOAuthForChildUser,
"DMServerOAuthForChildUser",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif
#if !BUILDFLAG(IS_ANDROID)
// Whether to allow installed-by-default web apps to be installed or not.
BASE_FEATURE(kPreinstalledWebAppInstallation,
"DefaultWebAppInstallation",
base::FEATURE_ENABLED_BY_DEFAULT);
// Whether to run the PreinstalledWebAppDuplicationFixer code during start up.
BASE_FEATURE(kPreinstalledWebAppDuplicationFixer,
"PreinstalledWebAppDuplicationFixer",
base::FEATURE_ENABLED_BY_DEFAULT);
// Enables OS Integration sub managers to execute the
// registration/unregistration functionality and write the new OS states to the
// DB.
BASE_FEATURE(kOsIntegrationSubManagers,
"OsIntegrationSubManagers",
base::FEATURE_ENABLED_BY_DEFAULT);
const base::FeatureParam<OsIntegrationSubManagersStage>::Option
sub_manager_stages[] = {
{OsIntegrationSubManagersStage::kWriteConfig, "write_config"},
{OsIntegrationSubManagersStage::kExecuteAndWriteConfig,
"execute_and_write_config"}};
const base::FeatureParam<OsIntegrationSubManagersStage>
kOsIntegrationSubManagersStageParam{
&kOsIntegrationSubManagers, "stage",
OsIntegrationSubManagersStage::kWriteConfig, &sub_manager_stages};
#endif
// Generates customised default offline page that is shown when web app is
// offline if no custom page is provided by developer.
BASE_FEATURE(kPWAsDefaultOfflinePage,
"PWAsDefaultOfflinePage",
base::FEATURE_ENABLED_BY_DEFAULT);
// API that allows PWAs manually minimizing, maximizing and restoring windows.
BASE_FEATURE(kDesktopPWAsAdditionalWindowingControls,
"DesktopPWAsAdditionalWindowingControls",
base::FEATURE_DISABLED_BY_DEFAULT);
// When installing default installed PWAs, we wait for service workers
// to cache resources.
BASE_FEATURE(kDesktopPWAsCacheDuringDefaultInstall,
"DesktopPWAsCacheDuringDefaultInstall",
base::FEATURE_ENABLED_BY_DEFAULT);
// Moves the Extensions "puzzle piece" icon from the title bar into the app menu
// for web app windows.
BASE_FEATURE(kDesktopPWAsElidedExtensionsMenu,
"DesktopPWAsElidedExtensionsMenu",
#if BUILDFLAG(IS_CHROMEOS)
base::FEATURE_ENABLED_BY_DEFAULT
#else
base::FEATURE_DISABLED_BY_DEFAULT
#endif
);
// Whether to parse and enforce the WebAppSettings policy.
BASE_FEATURE(kDesktopPWAsEnforceWebAppSettingsPolicy,
"DesktopPWAsEnforceWebAppSettingsPolicy",
base::FEATURE_ENABLED_BY_DEFAULT);
// Enables or disables Desktop PWAs to be auto-started on OS login.
BASE_FEATURE(kDesktopPWAsRunOnOsLogin,
"DesktopPWAsRunOnOsLogin",
#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX)
base::FEATURE_ENABLED_BY_DEFAULT
#else
base::FEATURE_DISABLED_BY_DEFAULT
#endif
);
// Runs diagnostics during start up to measure how broken web app icons are to
// feed into metrics.
BASE_FEATURE(kDesktopPWAsIconHealthChecks,
"DesktopPWAsIconHealthChecks",
base::FEATURE_ENABLED_BY_DEFAULT);
// Adds a user settings that allows PWAs to be opened with a tab strip.
BASE_FEATURE(kDesktopPWAsTabStripSettings,
"DesktopPWAsTabStripSettings",
base::FEATURE_DISABLED_BY_DEFAULT);
// Adds support for web bundles, making web apps able to be launched offline.
BASE_FEATURE(kDesktopPWAsWebBundles,
"DesktopPWAsWebBundles",
base::FEATURE_DISABLED_BY_DEFAULT);
#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_LINUX) || \
BUILDFLAG(IS_FUCHSIA)
// Controls whether Chrome Apps are supported. See https://crbug.com/1221251.
// If the feature is disabled, Chrome Apps continue to work. If enabled, Chrome
// Apps will not launch and will be marked in the UI as deprecated.
BASE_FEATURE(kChromeAppsDeprecation,
"ChromeAppsDeprecation",
base::FEATURE_ENABLED_BY_DEFAULT);
// Controls whether force installed and preinstalled apps should be exempt from
// deprecation.
BASE_FEATURE(kKeepForceInstalledPreinstalledApps,
"KeepForceInstalledPreinstalledApps",
base::FEATURE_ENABLED_BY_DEFAULT);
// Controls if the 'launch anyways' button is shown.
const base::FeatureParam<bool> kChromeAppsDeprecationHideLaunchAnyways{
&kChromeAppsDeprecation, "HideLaunchAnyways", false};
#endif
// Enables notification permission revocation for origins that may send
// disruptive notifications.
BASE_FEATURE(kDisruptiveNotificationPermissionRevocation,
"DisruptiveNotificationPermissionRevocation",
base::FEATURE_ENABLED_BY_DEFAULT);
// Enable DNS over HTTPS (DoH).
BASE_FEATURE(kDnsOverHttps,
"DnsOverHttps",
#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_MAC) || \
BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_LINUX)
base::FEATURE_ENABLED_BY_DEFAULT
#else
base::FEATURE_DISABLED_BY_DEFAULT
#endif
);
// Set whether fallback to insecure DNS is allowed by default. This setting may
// be overridden for individual transactions.
const base::FeatureParam<bool> kDnsOverHttpsFallbackParam{&kDnsOverHttps,
"Fallback", true};
// Sets whether the DoH setting is displayed in the settings UI.
const base::FeatureParam<bool> kDnsOverHttpsShowUiParam {
&kDnsOverHttps, "ShowUi",
#if BUILDFLAG(IS_WIN) || BUILDFLAG(IS_CHROMEOS) || BUILDFLAG(IS_MAC) || \
BUILDFLAG(IS_ANDROID) || BUILDFLAG(IS_LINUX)
true
#else
false
#endif
};
// Supply one or more space-separated DoH server URI templates to use when this
// feature is enabled. If no templates are specified, then a hardcoded mapping
// will be used to construct a list of DoH templates associated with the IP
// addresses of insecure resolvers in the discovered configuration.
const base::FeatureParam<std::string> kDnsOverHttpsTemplatesParam{
&kDnsOverHttps, "Templates", ""};
#if BUILDFLAG(IS_ANDROID)
// Enable loading native libraries earlier in startup on Android.
BASE_FEATURE(kEarlyLibraryLoad,
"EarlyLibraryLoad",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif
// Enable the restricted web APIs for high-trusted apps.
BASE_FEATURE(kEnableRestrictedWebApis,
"EnableRestrictedWebApis",
base::FEATURE_ENABLED_BY_DEFAULT);
#if !BUILDFLAG(IS_ANDROID)
// Enable WebHID on extension service workers.
BASE_FEATURE(kEnableWebHidOnExtensionServiceWorker,
"EnableWebHidOnExtensionServiceWorker",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif
// Enable WebUSB on extension service workers.
BASE_FEATURE(kEnableWebUsbOnExtensionServiceWorker,
"EnableWebUsbOnExtensionServiceWorker",
base::FEATURE_DISABLED_BY_DEFAULT);
#if !BUILDFLAG(IS_ANDROID)
// Lazy initialize IndividualSettings for extensions from enterprise policy
// that are not installed.
BASE_FEATURE(kExtensionDeferredIndividualSettings,
"ExtensionDeferredIndividualSettings",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif
// If enabled, this feature's |kExternalInstallDefaultButtonKey| field trial
// parameter value controls which |ExternalInstallBubbleAlert| button is the
// default.
BASE_FEATURE(kExternalExtensionDefaultButtonControl,
"ExternalExtensionDefaultButtonControl",
base::FEATURE_DISABLED_BY_DEFAULT);
#if BUILDFLAG(IS_CHROMEOS_ASH)
BASE_FEATURE(kFileTransferEnterpriseConnector,
"FileTransferEnterpriseConnector",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif
#if BUILDFLAG(ENABLE_PLUGINS)
// Show Flash deprecation warning to users who have manually enabled Flash.
// https://crbug.com/918428
BASE_FEATURE(kFlashDeprecationWarning,
"FlashDeprecationWarning",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif
// Controls whether the GeoLanguage system is enabled. GeoLanguage uses IP-based
// coarse geolocation to provide an estimate (for use by other Chrome features
// such as Translate) of the local/regional language(s) corresponding to the
// device's location. If this feature is disabled, the GeoLanguage provider is
// not initialized at startup, and clients calling it will receive an empty list
// of languages.
BASE_FEATURE(kGeoLanguage, "GeoLanguage", base::FEATURE_DISABLED_BY_DEFAULT);
#if !BUILDFLAG(IS_ANDROID)
// Enables or disables the Happiness Tracking System demo mode for Desktop
// Chrome.
BASE_FEATURE(kHappinessTrackingSurveysForDesktopDemo,
"HappinessTrackingSurveysForDesktopDemo",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for COEP issues in Chrome
// DevTools on Desktop.
BASE_FEATURE(kHaTSDesktopDevToolsIssuesCOEP,
"HaTSDesktopDevToolsIssuesCOEP",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for Mixed Content issues in
// Chrome DevTools on Desktop.
BASE_FEATURE(kHaTSDesktopDevToolsIssuesMixedContent,
"HaTSDesktopDevToolsIssuesMixedContent",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for same-site cookies
// issues in Chrome DevTools on Desktop.
BASE_FEATURE(kHappinessTrackingSurveysForDesktopDevToolsIssuesCookiesSameSite,
"HappinessTrackingSurveysForDesktopDevToolsIssuesCookiesSameSite",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for Heavy Ad issues in
// Chrome DevTools on Desktop.
BASE_FEATURE(kHaTSDesktopDevToolsIssuesHeavyAd,
"HaTSDesktopDevToolsIssuesHeavyAd",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for CSP issues in Chrome
// DevTools on Desktop.
BASE_FEATURE(kHaTSDesktopDevToolsIssuesCSP,
"HaTSDesktopDevToolsIssuesCSP",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for Desktop Privacy Guide.
BASE_FEATURE(kHappinessTrackingSurveysForDesktopPrivacyGuide,
"HappinessTrackingSurveysForDesktopPrivacyGuide",
base::FEATURE_DISABLED_BY_DEFAULT);
const base::FeatureParam<base::TimeDelta>
kHappinessTrackingSurveysForDesktopPrivacyGuideTime{
&kHappinessTrackingSurveysForDesktopPrivacyGuide, "settings-time",
base::Seconds(20)};
// Enables or disables the Happiness Tracking System for Desktop Privacy
// Sandbox.
BASE_FEATURE(kHappinessTrackingSurveysForDesktopPrivacySandbox,
"HappinessTrackingSurveysForDesktopPrivacySandbox",
base::FEATURE_DISABLED_BY_DEFAULT);
const base::FeatureParam<base::TimeDelta>
kHappinessTrackingSurveysForDesktopPrivacySandboxTime{
&kHappinessTrackingSurveysForDesktopPrivacySandbox, "settings-time",
base::Seconds(20)};
// Enables or disables the Happiness Tracking System for Desktop Chrome
// Settings.
BASE_FEATURE(kHappinessTrackingSurveysForDesktopSettings,
"HappinessTrackingSurveysForDesktopSettings",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for Desktop Chrome
// Privacy Settings.
BASE_FEATURE(kHappinessTrackingSurveysForDesktopSettingsPrivacy,
"HappinessTrackingSurveysForDesktopSettingsPrivacy",
base::FEATURE_DISABLED_BY_DEFAULT);
const base::FeatureParam<bool>
kHappinessTrackingSurveysForDesktopSettingsPrivacyNoSandbox{
&kHappinessTrackingSurveysForDesktopSettingsPrivacy, "no-sandbox",
false};
const base::FeatureParam<bool>
kHappinessTrackingSurveysForDesktopSettingsPrivacyNoGuide{
&kHappinessTrackingSurveysForDesktopSettingsPrivacy, "no-guide", false};
const base::FeatureParam<base::TimeDelta>
kHappinessTrackingSurveysForDesktopSettingsPrivacyTime{
&kHappinessTrackingSurveysForDesktopSettingsPrivacy, "settings-time",
base::Seconds(20)};
// Enables or disables the Happiness Tracking System for Desktop Chrome
// NTP Modules.
BASE_FEATURE(kHappinessTrackingSurveysForDesktopNtpModules,
"HappinessTrackingSurveysForDesktopNtpModules",
base::FEATURE_DISABLED_BY_DEFAULT);
BASE_FEATURE(kHappinessTrackingSurveysForNtpPhotosOptOut,
"HappinessTrackingSurveysForrNtpPhotosOptOut",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for Chrome What's New.
BASE_FEATURE(kHappinessTrackingSurveysForDesktopWhatsNew,
"HappinessTrackingSurveysForDesktopWhatsNew",
base::FEATURE_DISABLED_BY_DEFAULT);
const base::FeatureParam<base::TimeDelta>
kHappinessTrackingSurveysForDesktopWhatsNewTime{
&kHappinessTrackingSurveysForDesktopWhatsNew, "whats-new-time",
base::Seconds(20)};
#endif // !BUILDFLAG(IS_ANDROID)
#if BUILDFLAG(IS_CHROMEOS_ASH)
// Enables or disables the Happiness Tracking System for the General survey.
BASE_FEATURE(kHappinessTrackingSystem,
"HappinessTrackingSystem",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for Bluetooth revamp
// survey.
BASE_FEATURE(kHappinessTrackingSystemBluetoothRevamp,
"HappinessTrackingSystemBluetoothRevamp",
base::FEATURE_ENABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for the Ent survey.
BASE_FEATURE(kHappinessTrackingSystemEnt,
"HappinessTrackingSystemEnt",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for the Stability survey.
BASE_FEATURE(kHappinessTrackingSystemStability,
"HappinessTrackingSystemStability",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for the Performance survey.
BASE_FEATURE(kHappinessTrackingSystemPerformance,
"HappinessTrackingSystemPerformance",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for Onboarding Experience.
BASE_FEATURE(kHappinessTrackingSystemOnboarding,
"HappinessTrackingOnboardingExperience",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for Unlock.
BASE_FEATURE(kHappinessTrackingSystemUnlock,
"HappinessTrackingUnlock",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for Smart Lock.
BASE_FEATURE(kHappinessTrackingSystemSmartLock,
"HappinessTrackingSmartLock",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for ARC Games survey.
BASE_FEATURE(kHappinessTrackingSystemArcGames,
"HappinessTrackingArcGames",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for Audio survey.
BASE_FEATURE(kHappinessTrackingSystemAudio,
"HappinessTrackingAudio",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for Personalization Avatar survey.
BASE_FEATURE(kHappinessTrackingPersonalizationAvatar,
"HappinessTrackingPersonalizationAvatar",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for Personalization Screensaver survey.
BASE_FEATURE(kHappinessTrackingPersonalizationScreensaver,
"HappinessTrackingPersonalizationScreensaver",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for Personalization Wallpaper survey.
BASE_FEATURE(kHappinessTrackingPersonalizationWallpaper,
"HappinessTrackingPersonalizationWallpaper",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for Media App PDF survey.
BASE_FEATURE(kHappinessTrackingMediaAppPdf,
"HappinessTrackingMediaAppPdf",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables the Happiness Tracking System for Camera App survey.
BASE_FEATURE(kHappinessTrackingSystemCameraApp,
"HappinessTrackingCameraApp",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for Photos Experience survey.
BASE_FEATURE(kHappinessTrackingPhotosExperience,
"HappinessTrackingPhotosExperience",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for General Camera survey.
BASE_FEATURE(kHappinessTrackingGeneralCamera,
"HappinessTrackingGeneralCamera",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables the Happiness Tracking System for Privacy Hub baseline survey.
BASE_FEATURE(kHappinessTrackingPrivacyHubBaseline,
"HappinessTrackingPrivacyHubBaseline",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif
// Hides the origin text from showing up briefly in WebApp windows.
BASE_FEATURE(kHideWebAppOriginText,
"HideWebAppOriginText",
base::FEATURE_DISABLED_BY_DEFAULT);
// Sets whether the HTTPS-Only Mode setting is displayed in the settings UI.
BASE_FEATURE(kHttpsOnlyMode, "HttpsOnlyMode", base::FEATURE_ENABLED_BY_DEFAULT);
// Enables the new implementation of HTTPS-First Mode.
BASE_FEATURE(kHttpsFirstModeV2,
"HttpsFirstModeV2",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables automatically upgrading main frame navigations to HTTPS.
BASE_FEATURE(kHttpsUpgrades,
"HttpsUpgrades",
base::FEATURE_DISABLED_BY_DEFAULT);
#if BUILDFLAG(IS_MAC)
BASE_FEATURE(kImmersiveFullscreen,
"ImmersiveFullscreen",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables immerisve fullscreen mode for PWA windows. The above feature only
// affects non-PWA windows.
BASE_FEATURE(kImmersiveFullscreenPWAs,
"ImmersiveFullscreenPWAs",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif
#if BUILDFLAG(IS_CHROMEOS_ASH)
// Enables scraping of password-expiry information during SAML login flow, which
// can lead to an in-session flow for changing SAML password if it has expired.
// This is safe to enable by default since it does not cause the password-expiry
// information to be stored, or any user-visible change - in order for anything
// to happen, the domain administrator has to intentionally send this extra
// info in the SAML response, and enable the InSessionPasswordChange policy.
// So, this feature is just for disabling the scraping code if it causes
// any unforeseen issues.
BASE_FEATURE(kInSessionPasswordChange,
"InSessionPasswordChange",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
#if BUILDFLAG(IS_WIN)
// A feature that controls whether Chrome warns about incompatible applications.
// This feature requires Windows 10 or higher to work because it depends on
// the "Apps & Features" system settings.
BASE_FEATURE(kIncompatibleApplicationsWarning,
"IncompatibleApplicationsWarning",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif
#if BUILDFLAG(IS_ANDROID)
// When enabled, users will see a warning when downloading from Incognito.
BASE_FEATURE(kIncognitoDownloadsWarning,
"IncognitoDownloadsWarning",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif
// When enabled, users will see updated UI in Incognito NTP
BASE_FEATURE(kIncognitoNtpRevamp,
"IncognitoNtpRevamp",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables Isolated Web App Developer Mode, which allows developers to
// install untrusted Isolated Web Apps.
BASE_FEATURE(kIsolatedWebAppDevMode,
"IsolatedWebAppDevMode",
base::FEATURE_DISABLED_BY_DEFAULT);
#if BUILDFLAG(IS_CHROMEOS)
BASE_FEATURE(kKioskEnableAppService,
"KioskEnableAppService",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif // BUILDFLAG(IS_CHROMEOS)
// When enabled, allows other features to use the k-Anonymity Service.
BASE_FEATURE(kKAnonymityService,
"KAnonymityService",
base::FEATURE_DISABLED_BY_DEFAULT);
// Origin to use for requests to the k-Anonymity Auth server to get trust
// tokens.
constexpr base::FeatureParam<std::string> kKAnonymityServiceAuthServer{
&kKAnonymityService, "KAnonymityServiceAuthServer",
"https://chromekanonymityauth-pa.googleapis.com/"};
// Origin to use as a relay for OHTTP requests to the k-Anonymity Join server.
constexpr base::FeatureParam<std::string> kKAnonymityServiceJoinRelayServer{
&kKAnonymityService, "KAnonymityServiceJoinRelayServer", ""};
// Origin to use to notify the k-Anonymity Join server of group membership.
constexpr base::FeatureParam<std::string> kKAnonymityServiceJoinServer{
&kKAnonymityService, "KAnonymityServiceJoinServer",
"https://chromekanonymity-pa.googleapis.com/"};
// Minimum amount of time allowed between notifying the Join server of
// membership in a distinct group.
constexpr base::FeatureParam<base::TimeDelta> kKAnonymityServiceJoinInterval{
&kKAnonymityService, "KAnonymityServiceJoinInterval", base::Days(1)};
// Origin to use as a relay for OHTTP requests to the k-Anonymity Query server.
constexpr base::FeatureParam<std::string> kKAnonymityServiceQueryRelayServer{
&kKAnonymityService, "KAnonymityServiceQueryRelayServer", ""};
// Origin to use to request k-anonymity status from the k-Anonymity Query
// server.
constexpr base::FeatureParam<std::string> kKAnonymityServiceQueryServer{
&kKAnonymityService, "KAnonymityServiceQueryServer",
"https://chromekanonymityquery-pa.googleapis.com/"};
// Minimum amount of time allowed between requesting k-anonymity status from the
// Query server for a distinct group.
constexpr base::FeatureParam<base::TimeDelta> kKAnonymityServiceQueryInterval{
&kKAnonymityService, "KAnonymityServiceJoinInterval", base::Days(1)};
// When enabled, the k-Anonymity Service will send requests to the Join and
// Query k-anonymity servers.
BASE_FEATURE(kKAnonymityServiceOHTTPRequests,
"KAnonymityServiceOHTTPRequests",
base::FEATURE_DISABLED_BY_DEFAULT);
// When enabled, the k-Anonymity Service can use a persistent storage to cache
// public keys.
BASE_FEATURE(kKAnonymityServiceStorage,
"KAnonymityServiceStorage",
base::FEATURE_DISABLED_BY_DEFAULT);
#if BUILDFLAG(IS_LINUX) && !BUILDFLAG(IS_CHROMEOS)
BASE_FEATURE(kLinuxLowMemoryMonitor,
"LinuxLowMemoryMonitor",
base::FEATURE_DISABLED_BY_DEFAULT);
// Values taken from the low-memory-monitor documentation and also apply to the
// portal API:
// https://hadess.pages.freedesktop.org/low-memory-monitor/gdbus-org.freedesktop.LowMemoryMonitor.html
constexpr base::FeatureParam<int> kLinuxLowMemoryMonitorModerateLevel{
&kLinuxLowMemoryMonitor, "moderate_level", 50};
constexpr base::FeatureParam<int> kLinuxLowMemoryMonitorCriticalLevel{
&kLinuxLowMemoryMonitor, "critical_level", 255};
#endif // BUILDFLAG(IS_LINUX) && !BUILDFLAG(IS_CHROMEOS)
#if BUILDFLAG(IS_LINUX) || BUILDFLAG(IS_MAC) || BUILDFLAG(IS_WIN)
BASE_FEATURE(kListWebAppsSwitch,
"ListWebAppsSwitch",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif
#if BUILDFLAG(IS_MAC)
// Enable screen capture system permission check on Mac 10.15+.
BASE_FEATURE(kMacSystemScreenCapturePermissionCheck,
"MacSystemScreenCapturePermissionCheck",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif
#if BUILDFLAG(IS_CHROMEOS_ASH)
// Whether to show the Metered toggle in Settings, allowing users to toggle
// whether to treat a WiFi or Cellular network as 'metered'.
BASE_FEATURE(kMeteredShowToggle,
"MeteredShowToggle",
base::FEATURE_DISABLED_BY_DEFAULT);
// Whether to show the Hidden toggle in Settings, allowing users to toggle
// whether to treat a WiFi network as having a hidden ssid.
BASE_FEATURE(kShowHiddenNetworkToggle,
"ShowHiddenNetworkToggle",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif
#if BUILDFLAG(IS_ANDROID)
// Enables the new design of metrics settings.
BASE_FEATURE(kMetricsSettingsAndroid,
"MetricsSettingsAndroid",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif
#if BUILDFLAG(IS_CHROMEOS)
BASE_FEATURE(kMicrosoftOfficeWebAppExperiment,
"MicrosoftOfficeWebAppExperiment",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif
BASE_FEATURE(kMigrateExternalPrefsToWebAppDB,
"MigrateExternalPrefsToWebAppDB",
base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kMoveWebApp,
"MoveWebApp",
base::FeatureState::FEATURE_DISABLED_BY_DEFAULT);
const base::FeatureParam<std::string> kMoveWebAppUninstallStartUrlPrefix(
&kMoveWebApp,
"uninstallStartUrlPrefix",
"");
const base::FeatureParam<std::string> kMoveWebAppUninstallStartUrlPattern(
&kMoveWebApp,
"uninstallStartUrlPattern",
"");
const base::FeatureParam<std::string>
kMoveWebAppInstallStartUrl(&kMoveWebApp, "installStartUrl", "");
// Enables the use of system notification centers instead of using the Message
// Center for displaying the toasts. The feature is hardcoded to enabled for
// Chrome OS.
#if BUILDFLAG(ENABLE_SYSTEM_NOTIFICATIONS) && !BUILDFLAG(IS_CHROMEOS_ASH)
BASE_FEATURE(kNativeNotifications,
"NativeNotifications",
base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kSystemNotifications,
"SystemNotifications",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif // BUILDFLAG(ENABLE_SYSTEM_NOTIFICATIONS)
#if BUILDFLAG(IS_MAC)
// Enables the usage of Apple's new Notification API on macOS 10.14+
BASE_FEATURE(kNewMacNotificationAPI,
"NewMacNotificationAPI",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif // BUILDFLAG(IS_MAC)
// When kNoReferrers is enabled, most HTTP requests will provide empty
// referrers instead of their ordinary behavior.
BASE_FEATURE(kNoReferrers, "NoReferrers", base::FEATURE_DISABLED_BY_DEFAULT);
#if BUILDFLAG(IS_WIN)
// Changes behavior of requireInteraction for notifications. Instead of staying
// on-screen until dismissed, they are instead shown for a very long time.
BASE_FEATURE(kNotificationDurationLongForRequireInteraction,
"NotificationDurationLongForRequireInteraction",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif // BUILDFLAG(IS_WIN)
#if !BUILDFLAG(IS_ANDROID)
BASE_FEATURE(kOnConnectNative,
"OnConnectNative",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif
// Enables/disables marketing emails for other countries other than US,CA,UK.
BASE_FEATURE(kOobeMarketingAdditionalCountriesSupported,
"kOobeMarketingAdditionalCountriesSupported",
base::FEATURE_ENABLED_BY_DEFAULT);
// Enables/disables marketing emails for double opt-in countries.
BASE_FEATURE(kOobeMarketingDoubleOptInCountriesSupported,
"kOobeMarketingDoubleOptInCountriesSupported",
base::FEATURE_ENABLED_BY_DEFAULT);
#if BUILDFLAG(IS_ANDROID)
// Enables or disabled the OOM intervention.
BASE_FEATURE(kOomIntervention,
"OomIntervention",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif
#if BUILDFLAG(IS_CHROMEOS_ASH)
// Enables usage of Parent Access Code in the login flow for reauth and add
// user. Requires |kParentAccessCode| to be enabled.
BASE_FEATURE(kParentAccessCodeForOnlineLogin,
"ParentAccessCodeForOnlineLogin",
base::FEATURE_ENABLED_BY_DEFAULT);
#endif
// Keep a client-side log of when websites access permission-gated capabilities
// to allow the user to audit usage.
BASE_FEATURE(kPermissionAuditing,
"PermissionAuditing",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables using the prediction service for permission prompts. We will keep
// this feature in order to allow us to update the holdback chance via finch.
BASE_FEATURE(kPermissionPredictions,
"PermissionPredictions",
base::FEATURE_ENABLED_BY_DEFAULT);
// The holdback chance is 30% but it can also be configured/updated
// through finch if needed.
const base::FeatureParam<double> kPermissionPredictionsHoldbackChance(
&kPermissionPredictions,
"holdback_chance",
0.3);
// Enables using the prediction service for geolocation permission prompts.
BASE_FEATURE(kPermissionGeolocationPredictions,
"PermissionGeolocationPredictions",
base::FEATURE_ENABLED_BY_DEFAULT);
const base::FeatureParam<double>
kPermissionGeolocationPredictionsHoldbackChance(
&kPermissionGeolocationPredictions,
"holdback_chance",
0.3);
#if BUILDFLAG(IS_CHROMEOS_ASH)
// Enable support for "Plugin VMs" on Chrome OS.
BASE_FEATURE(kPluginVm, "PluginVm", base::FEATURE_DISABLED_BY_DEFAULT);
#endif
// Allows Chrome to do preconnect when prerender fails.
BASE_FEATURE(kPrerenderFallbackToPreconnect,
"PrerenderFallbackToPreconnect",
base::FEATURE_ENABLED_BY_DEFAULT);
BASE_FEATURE(kPrivacyGuideAndroid,
"PrivacyGuideAndroid",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables or disables push subscriptions keeping Chrome running in the
// background when closed.
BASE_FEATURE(kPushMessagingBackgroundMode,
"PushMessagingBackgroundMode",
base::FEATURE_DISABLED_BY_DEFAULT);
// Shows a confirmation dialog when updates to a PWAs icon has been detected.
BASE_FEATURE(kPwaUpdateDialogForIcon,
"PwaUpdateDialogForIcon",
base::FEATURE_DISABLED_BY_DEFAULT);
// Shows a confirmation dialog when updates to a PWAs name has been detected.
BASE_FEATURE(kPwaUpdateDialogForName,
"PwaUpdateDialogForName",
base::FEATURE_ENABLED_BY_DEFAULT);
// Enables using quiet prompts for notification permission requests.
BASE_FEATURE(kQuietNotificationPrompts,
"QuietNotificationPrompts",
base::FEATURE_ENABLED_BY_DEFAULT);
// Enables recording additional web app related debugging data to be displayed
// in: chrome://web-app-internals
BASE_FEATURE(kRecordWebAppDebugInfo,
"RecordWebAppDebugInfo",
base::FEATURE_DISABLED_BY_DEFAULT);
// Enables notification permission revocation for abusive origins.
BASE_FEATURE(kAbusiveNotificationPermissionRevocation,
"AbusiveOriginNotificationPermissionRevocation",
base::FEATURE_ENABLED_BY_DEFAULT);
#if BUILDFLAG(IS_CHROMEOS_ASH)
// Enables permanent removal of Legacy Supervised Users on startup.
BASE_FEATURE(kRemoveSupervisedUsersOnStartup,
"RemoveSupervisedUsersOnStartup",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif
#if !BUILDFLAG(IS_ANDROID)
// Enables notification permission module in Safety Check.
BASE_FEATURE(kSafetyCheckNotificationPermissions,
"SafetyCheckNotificationPermissions",
base::FEATURE_ENABLED_BY_DEFAULT);
const base::FeatureParam<int>
kSafetyCheckNotificationPermissionsMinEnagementLimit{
&kSafetyCheckNotificationPermissions,
"min-engagement-notification-count", 0};
const base::FeatureParam<int>
kSafetyCheckNotificationPermissionsLowEnagementLimit{
&kSafetyCheckNotificationPermissions,
"low-engagement-notification-count", 4};
#endif // !BUILDFLAG(IS_ANDROID)
#if BUILDFLAG(IS_CHROMEOS_ASH)
// Enable support for multiple scheduler configurations.
BASE_FEATURE(kSchedulerConfiguration,
"SchedulerConfiguration",
base::FEATURE_DISABLED_BY_DEFAULT);
#endif // BUILDFLAG(IS_CHROMEOS_ASH)
// Controls whether SCT audit reports are queued and the rate at which they
// should be sampled. Default sampling rate is 1/10,000 certificates.
#if BUILDFLAG(IS_ANDROID)
BASE_FEATURE(kSCTAuditing, "SCTAuditing", base::FEATURE_DISABLED_BY_DEFAULT);
#else
BASE_FEATURE(kSCTAuditing, "SCTAuditing", base::FEATURE_ENABLED_BY_DEFAULT);
#endif
constexpr base::FeatureParam<double> kSCTAuditingSamplingRate{
&kSCTAuditing, "sampling_rate", 0.0001};
// SCT auditing hashdance allows Chrome clients who are not opted-in to Enhanced
// Safe Browsing Reporting to perform a k-anonymous query to see if Google knows
// about an SCT seen in the wild. If it hasn't been seen, then it is considered
// a security incident and uploaded to Google.
BASE_FEATURE(kSCTAuditingHashdance,
"SCTAuditingHashdance",
base::FEATURE_ENABLED_BY_DEFAULT);
// An estimated high bound for the time it takes Google to ingest updates to an
// SCT log. Chrome will wait for at least this time plus the Log's Maximum Merge
// Delay after an SCT's timestamp before performing a hashdance lookup query.
const base::FeatureParam<base::TimeDelta> kSCTLogExpectedIngestionDelay{
&kSCTAuditingHashdance,
"sct_log_expected_ingestion_delay",
base::Hours(1),
};
// A random delay will be added to the expected log ingestion delay between zero
// and this maximum. This prevents a burst of queries once a new SCT is issued.
const base::FeatureParam<base::TimeDelta> kSCTLogMaxIngestionRandomDelay{
&kSCTAuditingHashdance,
"sct_log_max_ingestion_random_delay",
base::Hours(1),
};
// Controls whether the user is prompted when sites request attestation.